https://sqcjy111.iteye.com/blog/1183928

查看锁表进程SQL语句1： 

select sess.sid, 

   sess.serial#, 

   lo.oracle_username, 

   lo.os_user_name, 

   ao.object_name, 

   lo.locked_mode 

   from v$locked_object lo, 

   dba_objects ao, 

   v$session sess 

where ao.object_id = lo.object_id and lo.session_id = sess.sid; 

查看锁表进程SQL语句2： 

select * from v$session t1, v$locked_object t2 where t1.sid = t2.SESSION_ID; 

杀掉锁表进程： 

如有記錄則表示有lock，記錄下SID和serial# ，將記錄的ID替換下面的738,1429，即可解除LOCK 

alter system kill session '738,1429'; 

用这个可以查：  select s.sid,s.machine,o.object_name,l.oracle_username,l.locked_mode, 'ALTER  SYSTEM  KILL  SESSION  '''||s.sid||',  '||s.serial#||''';'   Command  from  v$locked_object  l,v$session  s,all_objects  o  where  l.session_id=s.sid  and  l.object_id=o.object_id  可以查看哪台机器哪个用户锁了记录, 其中command是用来杀掉锁住记录的session 

******************************************************************************************************************

SELECT        A.OBJECT_ID,        B.OBJECT_NAME,        A.SESSION_ID,        A.ORACLE_USERNAME,        A.OS_USER_NAME,        A.PROCESS,        A.LOCKED_MODE FROM V$LOCKED_OBJECT A, DBA_OBJECTS B WHERE A.OBJECT_ID = B.OBJECT_ID; 

SELECT T2.USERNAME, T2.SID, T2.SERIAL#, T2.LOGON_TIME FROM V$LOCKED_OBJECT T1, V$SESSION T2 WHERE T1.SESSION_ID = T2.SID ORDER BY T2.LOGON_TIME; 

ALTER SYSTEM KILL SESSION 'sid, serial#'; 

********************************************************************************************************************

session 1: C:\>sqlplus hxg/hxg 

SQL> select * from scott.t; 

         A B                    C ---------- -------------------- --------------------        111 aa                   bb        222 hello                world 

SQL> update scott.t  set b='good' where a=222; 

已更新 1 行。 

session 2: C:\>sqlplus scott/tiger 

SQL> select * from scott.t; 

         A B                    C ---------- -------------------- --------------------        111 aa                   bb        222 hello                world 

SQL> update t set b='asdfds' where a=222; 

挂起。。。。 

session 3: C:\>sqlplus "system/*** as sysdba" 

SQL> select sid,serial#,username,status from v$session; 

SID    SERIAL# USERNAME                       STATUS ---- ---------- ------------------------------ --------  146         25 SYS                            ACTIVE  147         11 SYS                            INACTIVE  148          2 HXG                            INACTIVE  150          5 SCOTT                          ACTIVE  151          1                                ACTIVE  154          1                                ACTIVE  159          6                                ACTIVE  160          1                                ACTIVE  161          1                                ACTIVE  162          1                                ACTIVE  163          1                                ACTIVE 

SID    SERIAL# USERNAME                       STATUS ---- ---------- ------------------------------ --------  164          1                                ACTIVE  165          1                                ACTIVE  166          1                                ACTIVE  167          1                                ACTIVE  168          1                                ACTIVE  169          1                                ACTIVE  170          1                                ACTIVE 

已选择18行。 

SQL> alter system kill session '148,2'; 

系统已更改。 

SQL> select sid,serial#,username,status from v$session; 

SID    SERIAL# USERNAME                       STATUS ---- ---------- ------------------------------ --------  146         25 SYS                            ACTIVE  147         11 SYS                            INACTIVE  148          2 HXG                            KILLED  150          5 SCOTT                          INACTIVE  151          1                                ACTIVE  154          1                                ACTIVE  159          6                                ACTIVE  160          1                                ACTIVE  161          1                                ACTIVE  162          1                                ACTIVE  163          1                                ACTIVE 

SID    SERIAL# USERNAME                       STATUS ---- ---------- ------------------------------ --------  164          1                                ACTIVE  165          1                                ACTIVE  166          1                                ACTIVE  167          1                                ACTIVE  168          1                                ACTIVE  169          1                                ACTIVE  170          1                                ACTIVE 

已选择18行。 

SQL> 

select   V$SESSION.sid,v$session.SERIAL#,v$process.spid,   

  rtrim(object_type)   object_type,rtrim(owner)   ||   '.'   ||   object_name   object_name,   

  decode(lmode,       0,   'None',   

  1,   'Null',   

  2,   'Row-S',   

  3,   'Row-X',   

  4,   'Share',   

  5,   'S/Row-X',   

  6,   'Exclusive', 'Unknown')   LockMode,   

  decode(request,   0,   'None',   

  1,   'Null',   

  2,   'Row-S',   

  3,   'Row-X',   

  4,   'Share',   

  5,   'S/Row-X',   

  6,   'Exclusive',   'Unknown')   RequestMode   

  ,ctime,   block   b,   

  v$session.username,MACHINE,MODULE,ACTION,   

  decode(A.type,   

  'MR',   'Media   Recovery',   

  'RT','Redo   Thread',   

  'UN','User   Name',   

  'TX',   'Transaction',   

  'TM',   'DML',   

  'UL',   'PL/SQL   User   Lock',   

  'DX',   'Distributed   Xaction',   

  'CF',   'Control   File',   

  'IS',   'Instance   State',   

  'FS',   'File   Set',   

  'IR',   'Instance   Recovery',   

  'ST',   'Disk   Space   Transaction',   

  'TS',   'Temp   Segment',   

  'IV',   'Library   Cache   Invalida-tion',   

  'LS',   'Log   Start   or   Switch',   

  'RW',   'Row   Wait',   

  'SQ',   'Sequence   Number',   

  'TE',   'Extend   Table',   

  'TT',   'Temp   Table',   

  'Unknown')   LockType   

  from   (SELECT   *   FROM   V$LOCK)   A,   all_objects,V$SESSION,v$process   

  where   A.sid   >   6   

  and   object_name<>'OBJ$'   

  and   A.id1   =   all_objects.object_id   

  and   A.sid=v$session.sid   

  and   v$process.addr=v$session.paddr; 

同样也是通过写sql从数据字典里查出来。 

// SELECT-SQL1 

// 功能:检查被加锁的对象 

//select obj.OWNER||'.'||obj.OBJECT_NAME as OBJ_NAME, // 对象名称(已经被锁住) 

//   obj.SUBOBJECT_NAME as SUBOBJ_NAME,     // 子对象名称(已经被锁住) 

//   obj.OBJECT_ID as OBJ_ID,        // 对象ID 

//   obj.OBJECT_TYPE as OBJ_TYPE,       // 对象类型 

//   lock_obj.SESSION_ID as SESSION_ID,     // 会话SESSION_ID 

//   lock_obj.ORACLE_USERNAME as ORA_USERNAME,  // ORACLE系统用户名称 

//   lock_obj.OS_USER_NAME as OS_USERNAME,    // 操作系统用户名称 

//   lock_obj.PROCESS as PROCESS       // 进程编号 

//from 

//  ( select * from all_objects where object_id in (select object_id from v$locked_object)) obj, 

//  v$locked_object lock_obj 

//where obj.object_id=lock_obj.object_id; 

SELECT-SQL2 

功能:检查被加锁的对象以及加锁的会话信息 

  如果需要手工解除锁,请对照要解锁的对象,记下SESSION_ID,SERIAL# 

项,然后运行下面的ALTER-SQL1 

//select LOCK_INFO.OWNER||'.'||LOCK_INFO.OBJ_NAME as OBJ_NAME, // 对象名称(已经被锁住) 

//   LOCK_INFO.SUBOBJ_NAME as SUBOBJ_NAME,       // 子对象名称(已经被锁住) 

//   SESS_INFO.MACHINE as MACHINE,         // 机器名称 

//   LOCK_INFO.SESSION_ID as SESSION_ID,       // 会话SESSION_ID 

//   SESS_INFO.SERIAL# as SERIAL#,         // 会话SERIAL# 

//   LOCK_INFO.ORA_USERNAME as ORA_USERNAME,      // ORACLE系统用户名称 

//   LOCK_INFO.OS_USERNAME as OS_USERNAME,       // 操作系统用户名称 

//   LOCK_INFO.PROCESS as PROCESS,         // 进程编号 

//   LOCK_INFO.OBJ_ID as OBJ_ID,          // 对象ID 

//   LOCK_INFO.OBJ_TYPE as OBJ_TYPE,         // 对象类型 

//   SESS_INFO.LOGON_TIME as LOGON_TIME,       // 登录时间 

//   SESS_INFO.PROGRAM  as PROGRAM,         // 程序名称 

//   SESS_INFO.STATUS as STATUS,          // 会话状态 

//   SESS_INFO.LOCKWAIT as LOCKWAIT,         // 等待锁 

//   SESS_INFO.ACTION as ACTION,          // 动作 

//   SESS_INFO.CLIENT_INFO as CLIENT_INFO       // 客户信息 

// 

//from 

// ( 

//  select obj.OWNER as OWNER, 

//     obj.OBJECT_NAME as OBJ_NAME, 

//     obj.SUBOBJECT_NAME as SUBOBJ_NAME, 

//     obj.OBJECT_ID as OBJ_ID, 

//     obj.OBJECT_TYPE as OBJ_TYPE, 

//     lock_obj.SESSION_ID as SESSION_ID, 

//     lock_obj.ORACLE_USERNAME as ORA_USERNAME, 

//     lock_obj.OS_USER_NAME as OS_USERNAME, 

//     lock_obj.PROCESS as PROCESS 

//  from 

//   ( select * from all_objects where object_id in (select object_id from v$locked_object)) obj, 

//   v$locked_object lock_obj 

//  where obj.object_id=lock_obj.object_id 

// )  LOCK_INFO, 

// ( 

//  select SID, 

//     SERIAL#, 

//     LOCKWAIT, 

//     STATUS, 

//     PROGRAM, 

//     ACTION, 

//     CLIENT_INFO, 

//     LOGON_TIME, 

//     MACHINE 

//  from v$session 

// ) SESS_INFO 

//where LOCK_INFO.SESSION_ID=SESS_INFO.SID ; 

看清楚了 下面就可以 杀死它了。 

// ALTER-SQL1 

// 功能:杀死会话(SESSION_ID,SERIAL#),可以手工解除锁 

//    请手工修改SESSION_ID,SERIAL#为相应值 

// 注意:本功能慎重使用,有一定的破坏性,该SQL可以断开客户机和服务器的连接 

//ALTER SYSTEM KILL SESSION 'SESSION_ID,SERIAL#';